[Eeglablist] FFT Transform

[Ibtissem KHOUAJA BENFRADJ]

Dear list, 
To better explain my request, I want to extract three parameters: amplitude, frequency and phase in order to replicate the EEG signal and pred its progress.Then, I have to write the signal as a sum of sine wave.no matter how little is the number of sinusoids.
I hope you understand me.Thank's a lot for your help, Ibti
Subject: Re: [Eeglablist] FFT Transform
From: divide5 at gmail.com
Date: Thu, 24 Oct 2013 08:25:35 +1100
To: ibtissem.khouaja at live.fr

Hi Ibti,
I'd like to help but I'm not sure if I understand what you want.Do you want to add together three different sine waves ant then do a FFT on the result?If you explain why you want to do this it may help. Also, do you want the code (Matlab, python ?) or do you want the theory?
Looking forward to finding a solution.
Alistair Walsh
On 23 Oct 2013, at 6:42 pm, Ibtissem KHOUAJA BENFRADJ <ibtissem.khouaja at live.fr> wrote:




hello,
I am currently working on EEG signal processing.I want to write the signal as:
f(t)= A1 sin(w1t) + B1 sin(w2t) + C1 sin(w2t)  ;
I'm looking on the net but I can't find a document that can help me.Do you have any idea about this representation?
Thanks a lot for your help!
Regards, Ibti 		 	   		  
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